Reversible traversing movement



(No Model'.)

L. KOSS. REVERSIBLE rERAVERSING MOVEMENT. y

Patented Jue 5, 1894L 'To UZZ' whom it confoc-rre-.v v Be it known that I, LOUSKOsS, a citizen 'of in the county of Marion and State otlndiana,

'. ments," of' sists in a The. obj

'i 1 5 simple, cheap, and 'durable trip mechanism in connection withan which, by' suitable engaginggrips'or catches,

' willl'automaticallyenga 'chain toreverse't'he direction of the'motion v fof the4 traversing cam-ingeV or piece to which is connected.;- I attain this object byfmeans fof the' mechanismlillustrated'- in the Iaccomof'y reference desi f both-theviews.

. ratas-fand secured-at .their ends to said `or other suitable securing device. I Onthe ends of the frames 1. are secured rigidly the ythe rivets- 8, by

-a'sui'icient length'to form aspace-between the plates of the chain to permitthe free en -.trance 1 1. whereby the'endless chain 7. is driven.

:the driving'shaft. or'ther'eanay be an intermediate train of reducing gears between said sprocket is secured for the purpose of prod uc# Iing chain?.v The shaft 5. is driven'bymeans arrivassesnare-Avensis@*Moreau ssi-fi L o'urs- K os s, otr ,inn IANA! Points, YInn IANA..

' sPEciFIcATIoNforning parte-fretten; raient Nmseoeadated :rune 5, 1894.4@ l

` 'tmiiicaugiirnaitgrsz-a1ste. seriuretavvs. momosenj the United' States,A residing 'at ndia'uapolis,` have invented new aud-useful Improvements in .nutornatic. lleve'rsible Traversn-gl' Move-'- t which the following is ajspeciicai,

lona.

connection-.with .traversing carriages of emery grinding OI other machines, and conf.

trip engaging and traversing mechanism-hereinafter.mcre'fully set' 'for-ih; Y ect'of my inventonis vto provide a endless traversing chain e'an'd disengage'said panying ydrawings in which vsimilar numbers gnate like parts'-throughout elevation'offv the appa; Fig. 2. 'is aplan of the same, framesl. are rmly connected to e guidepiecesZ, whichfare rxnly .framesbya bolt The end brackets. aand 4. inwhieh are journalers the plates of which are journaled the rollers 9, on

which said plates are united together to forma joint. `The rollers 9 are ofv vof the teeth 10, of the sprocket wheel The `sprocket wheel 11. is r'mlysecured on driving 'shaft and a shaft on which said ing a slow traversing motion of the travers# the plain pulley 113. mountedon the shaft-6.Vv

..ofa'sunatiefivihg belt en vuepaney 12. 'which is also .rmly secured onthe shaft 5.

,The opposite end ofthe. chain?. is passed over 15. journaled .in the carriage 1 6, and on the opposite end` of the said shaft is firmly secured pin1l8. which is ladapted'to accurately lit and freely Work inthe slot 19; ofthe connecting'v rod20.' The'lower end of. the connecting-rodv 20, is pivoted on the pin 21. secured firmly on the swinging end .of the traversing-chain grip .Y6 f l 5 `'l"ends 23..and 24. curved or bent vto the inore.- readilyengage and to'evenly bear against the l rollers 9. of thetrave'rsi ng chain 7; said grip22,

22. The chain gripis of aT-form and hasits the lever 1 7. which is provided with the stud is prefrablypivotedon the pin 25' secured on the carriage'l', for thewpurpose of the more therein to engage and disengage the t'o'p or .readiiy engaging. and disengaging the chain. v Aplain bar may be fitted in suitable guides' formed in the traversing carriage 16'. and caused to ^mo v'e upwardly and downwartlly.

1 the bottom ,portions of the traversing chain; L

but this form is objectionable as the frictional resistance of the guides renders the action of.

'the-tripor tumblinglever less sensitive.

The stop rod 26. is secured at its ends to 27 adjustably screws28.

The operation of lowsr-The .driving-shaft 5.`is rotated by secured thereon bythe set `means of its driving pulley 12, thereby rotatthe invention is as fol-` el. the frames lf. and`is provided with the stops f ingthe sprocket wheel 11. tol traverse the chain 7, continuously in the-direction of the arrows a as shown in Fig. 1. Totraverse I the carriage 16 in the direction indicatedbythe'arrow c, the tumbling or weighted lever 14. -is thrown in the direction or position shown infullv-lines topermit the engaging.

toe'23 of the grip22 to engage the bottom l portion of the traversing chain 7, by which means the carriage 16 is held in connection "with 'the traversingchain 7. to move itin the direction of the arrow c, till the tumbling le ,ver 14, contacts with the stop 2? by which it 'isinoved into the position shown in dotted lines which is the position at which said tum- -blin'glever falls in the inclinedapo'sition contrary and opposite to that shown in full lines,

to causethe top toe 24 of the grip 22, to engage the top portion o f the traversing chain 7. to move the carriage 16 in the direction of the Stop arrow b, that is, in a direction contrary andopposite to theA direction when the grip 22 engages the`bottom portion of the traversing chain '7. The traversing carriage continues to `traverse in this direction till the `ro tumbling lever 14. engages or contacts with A the stop. 27. b. by which it is thrown as be- -.fore to reverse the direction of translation of the sliding carriage 16. lnorder that the tumbling lever may operate to throw the op- 15 posite engaging toes 23. and 24`. into engagenient alternately with the top and bottom portionsof the traversing chain 7. it is necessary that the connecting rod 20. be providedwith the slot 19. in which' the pin 18.

ze has a suflicient longitudinal play to permit the tumbling lever 14; to fall inV position beyoud itscenter of gravityor the' center of gravity of the weight thereof before said pinl 1S contacts with either the top or bottom ends Y z5 of said slot19, to move the grip 22 into upper or lower engagement. Were this slot not provided'the carriage would not reverse its movement, but would stop immediately. Either the engaging toes 23. or 24. are disengaged from. 3o the traversing chain, there being no othera vauxiliary force provided to move said lever 14. Thefhead of the grip 22 has its toes 23. and

"M -241constructed`tojnstpass between or*eieartthe bottom and top portions of thetraversing '35 chain' 7. when ont of engagement; `this provision is necessary and it will at once .b e ob- .M `vious that the bottom toe 23,- must be out of engagement before the top `toe24 is moved` into engagement with the 4traversing chain.

4o It is also necessaryT at times to disengage the grip 22 entirelyand hold it in an'intermediate positionbetween the bottom and top portions of said chain for the purpose of x"maintaining the traversing carriage in a fixed po- 45 sition or holding it at rest. When the grip 22 is entirely ont of engagement the traversi ing carriage 16 may be moved longitudinally I in either direction on its guides 2, by hand. Having thus fully described the nature and operation of my invention, what I claim as 5o Patent of the United States therefor, is

1. In a traversing mechanism, the combination with a traversing carriage and an endless traversing chain mounted on suitable driving andsupportin g pulleys,of a chaingrip intermediate between the top4 and bottom portions of said chain, and adapted to engage and to disengage alternately the top 'and bottom portions of the latter, a connecting rod having its end looped, or slot-ted, a weighted tumbling lever Vhaving a shorter pin supporting arm, a pin engagingsaid slot of the connecting rod, and suitable means for tilting or tumbling said weighted lever, substantially as and 65 for the purpose set forth. i

2. In a traversing `mechanical movement, the combination with, a suitable traversing carriage, andan endless traversing chain, of a suitable driving chain pulley and` a snp- 7o porting pulley whereon said chain is mounted, `a suitable chain grip intermediate between 4the top and bottom portions of said traversing chain and adapted Atoengage said topfand bottom portions of the chain alternately, a weighted tumbling lever 'pvotedon. said traversing carriage, and having a pin snprporting'arm--a connecting rod `having one of its endsslotted longitudinally and adapted to receive the engaging pin of said pin arm of said weighted tumbling lever, astop rod and suitable stops adj ustably secured thereon, all .substantially as and' for the purpose set forth. In' testimony whereof Ihave hereunto set Ymy hand in the presence of two subscribing witnesses.

/ JOHNHSTEM.

new and useful, and desire to cover byLetters v a54r v.Louis Koss.. 

